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Botanical Name: Arnica cordifolia
Family: Asteraceae
Tribe: Heliantheae
Genus: Arnica
Species: A. cordifolia
Kingdom: Plantae
Order: Asterales
Synonyms:
*Arnica cordifolia Hook. var. cordifolia
*Arnica cordifolia Hook. var. pumila (Rydb.) Maguire
Common Name: Heartleaf arnica
Habitat :Arnica cordifolia is native to western North America from Alaska to California to New Mexico, as far east as Ontario and Michigan. It is a plant of many habitat types, including coniferous forests and mountain meadows.
Description:
This is a rhizomatous perennial herb producing one or more erect stems reaching a maximum height near half a meter. It has two to four pairs of leaves on the stem, each on a long petiole. The leaves are heart-shaped to arrowhead-shaped and finely toothed along the edges. The inflorescence bears one or more daisylike flower heads lined with white-haired phyllaries and sometimes studded with resin glands. The center of each head contains golden yellow disc florets and a fringe of bright golden ray florets approaching 3 centimeters in maximum length. Blooms: April – July
The fruit is a hairy achene up to a centimeter long, not counting its off-white pappus. Seeds are dispersed on the wind. An individual plant can live twelve years, surviving periodic wildfire by resprouting from its long, slender rhizome afterward.
The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects.Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid and neutral soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
Cultivation:
Prefers a moist, well-drained humus rich soil, preferably lime-free. Prefers a mixture of sand, loam and peat.
Propagation:
Seed – sow early spring in a cold frame. Only just cover the seed and make sure that the compost does not dry out. When large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse or cold frame for their first winter. Plant out in late spring or early summer. Division in spring.
Medicinal Uses:
The whole plant is antiecchymotic, antiphlogistic, nervine, sternutatory and vulnerary. When applied intravenously or orally it causes a rise in body temperature. All parts of the plant may be used, but the flowers are used in preference to the root. They have a discutient property and a tincture is used as an external application to swellings, sprains, bruises and wounds. A salve applied to cuts helps to keep down infections.
Other Uses: This plant is used as a hair conditioner. No further details are available.
Known Hazards; The whole plant is toxic and should only be used for external applications to unbroken skin.
Disclaimer : The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplement, it is always advisable to consult with your own health care provider.
Resources:
https://en.wikipedia.org/wiki/Arnica_cordifolia
http://www.pfaf.org/user/Plant.aspx?LatinName=Arnica+cordifolia
http://biology.burke.washington.edu/herbarium/imagecollection.php?Genus=Arnica&Species=cordifolia
